/**
 * Copyright 2011-2019 Asakusa Framework Team.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.asakusafw.dag.runtime.data;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

import com.asakusafw.dag.api.common.ObjectCursor;
import com.asakusafw.runtime.value.IntOption;

class IntOptionAdapter implements DataAdapter<IntOption> {

    @Override
    public IntOption create() {
        return new IntOption();
    }

    @SuppressWarnings("deprecation")
    @Override
    public void copy(IntOption source, IntOption destination) {
        destination.copyFrom(source);
    }

    @Override
    public void write(IntOption source, DataOutput output) throws IOException {
        source.write(output);
    }

    @Override
    public void read(DataInput input, IntOption destination) throws IOException {
        destination.readFields(input);
    }

    @SuppressWarnings("deprecation")
    static ObjectCursor range(int begin, int end) {
        return new ObjectCursor() {
            final IntOption value = new IntOption();
            int current = begin;
            @Override
            public boolean nextObject() throws IOException, InterruptedException {
                if (current < end) {
                    value.modify(current++);
                    return true;
                }
                return false;
            }
            @Override
            public Object getObject() throws IOException, InterruptedException {
                return value;
            }
        };
    }
}
